RAM not recognized in BIOS and WIN 7 64-bit

Just installed this memory

G.SKILL F3-12800CL6T-6GBPI (2Gx3)

In BIOS and in windows there is only 4 GB RAM detected.




But CPU-Z is detecting 6GB of memory...




RAM is seated properly as described in MOBO specification, CPU is also seated properly, I double cheked...

Memtest showed no errors.

System specs :

mobo : ASUS P6T SE
cpu : socket 1366 , i7 920 @ 2,67 GHz
power supply : Chieftec 650 W
2 IDE HDD + 1 SATA WD (OS HDD)
video card : GTX 260 @ stock speed

Nothing is overcloked...

Please help, because I used all my PC knowledge and do not what to do next... :(
16 answers Last reply
More about recognized bios
  1. here are working picture links

    Windows:


    CPU-Z:
  2. According to GSkill, they are not compatible with your motherboard...

    ASUS Rampage II Extreme
    ASUS Rampage II GENE
    ASUS P6T7 WS SuperComputer
    ASUS P6T6 WS Revolution
    ASUS P6T WS Professional
    ASUS P6TD Deluxe
    ASUS P6T Deluxe V2
    ASUS P6T Deluxe

    http://www.gskill.com/products.php?index=260
  3. your cpu supports ddr3 up to 1066. you are trying to run 1600. only thing to check would be in the bios, make sure its set to run triple channel ram, not dual channel.
  4. I turned on X.M.P. in BIOS and memory is runing normal @ 1600MHz, except BIOS and Win dont see other 2 GB, so nothing is changed , overcloked or not...
  5. does your bios give you an option on how many channels of ram to use?
  6. nope, i didnt see that option...
  7. strange, there should be, i have setup 2 of those boards, maybe a different bios version, but i thought i remember seeing that option.
  8. will check again... ty
  9. there is no such option in BIOS... BIOS is ver. 0908...
  10. in that case, since the ram speed doesnt match the cpu, and its not on the QVL, i would say thats most likely the wrong ram for your system. maybe try to check for a bios update, that would be all i could think of.
  11. http://gskill.us/forum/showthread.php?t=5059

    found something here, but the problem is I don't now what to do in BIOS... time for some experimenting :sol:
  12. sorry for double posting i cannot edit my posts yet

    http://gskill.us/forum/showthread.php?t=5059
  13. good luck!
  14. hello, go to starup, press ''msconfig'' then ''advanced options'' to the upper right there is square that tells you how much ram will be your maximum...try this ;) hope it helps
  15. papakostaskostas said:
    hello, go to starup, press ''msconfig'' then ''advanced options'' to the upper right there is square that tells you how much ram will be your maximum...try this ;) hope it helps



    ty for ur answer, i looked there and this option is not ticked.... but i exchanged this RAM for another model because i just couldnt make it work....
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